Capability to Configure Custom KeyStores for All Inbound Authentication Protocols

[Binara-Sachin]

By default, the Primary or Tenant KeyStore is used for operations in the Authentication Flow such as Signing or Encrypting JWT-Tokens, SAML-Assertions, etc.
Currently, a separate KeyStore can be configured for the SAML 2.0 flow for inbound authentication-related functionalities.

[keystore.saml]
file_name = ""
password = ""
type = ""
alias = ""
key_password = ""

For the rest of the protocols, (OAuth 2.0, WS-Federation, WS-Trust) WSO2 Identity Server does not have this capability.